Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
new file mode 100644
index 0000000..8d775be
--- /dev/null
+++ b/include/linux/netdevice.h
@@ -0,0 +1,933 @@
+/*
+ * INET An implementation of the TCP/IP protocol suite for the LINUX
+ * operating system. INET is implemented using the BSD Socket
+ * interface as the means of communication with the user level.
+ *
+ * Definitions for the Interfaces handler.
+ *
+ * Version: @(#)dev.h 1.0.10 08/12/93
+ *
+ * Authors: Ross Biro, <bir7@leland.Stanford.Edu>
+ * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
+ * Corey Minyard <wf-rch!minyard@relay.EU.net>
+ * Donald J. Becker, <becker@cesdis.gsfc.nasa.gov>
+ * Alan Cox, <Alan.Cox@linux.org>
+ * Bjorn Ekwall. <bj0rn@blox.se>
+ * Pekka Riikonen <priikone@poseidon.pspt.fi>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ * Moved to /usr/include/linux for NET3
+ */
+#ifndef _LINUX_NETDEVICE_H
+#define _LINUX_NETDEVICE_H
+
+#include <linux/if.h>
+#include <linux/if_ether.h>
+#include <linux/if_packet.h>
+
+#ifdef __KERNEL__
+#include <asm/atomic.h>
+#include <asm/cache.h>
+#include <asm/byteorder.h>
+
+#include <linux/config.h>
+#include <linux/device.h>
+#include <linux/percpu.h>
+
+struct divert_blk;
+struct vlan_group;
+struct ethtool_ops;
+struct netpoll;
+ /* source back-compat hooks */
+#define SET_ETHTOOL_OPS(netdev,ops) \
+ ( (netdev)->ethtool_ops = (ops) )
+
+#define HAVE_ALLOC_NETDEV /* feature macro: alloc_xxxdev
+ functions are available. */
+#define HAVE_FREE_NETDEV /* free_netdev() */
+#define HAVE_NETDEV_PRIV /* netdev_priv() */
+
+#define NET_XMIT_SUCCESS 0
+#define NET_XMIT_DROP 1 /* skb dropped */
+#define NET_XMIT_CN 2 /* congestion notification */
+#define NET_XMIT_POLICED 3 /* skb is shot by police */
+#define NET_XMIT_BYPASS 4 /* packet does not leave via dequeue;
+ (TC use only - dev_queue_xmit
+ returns this as NET_XMIT_SUCCESS) */
+
+/* Backlog congestion levels */
+#define NET_RX_SUCCESS 0 /* keep 'em coming, baby */
+#define NET_RX_DROP 1 /* packet dropped */
+#define NET_RX_CN_LOW 2 /* storm alert, just in case */
+#define NET_RX_CN_MOD 3 /* Storm on its way! */
+#define NET_RX_CN_HIGH 4 /* The storm is here */
+#define NET_RX_BAD 5 /* packet dropped due to kernel error */
+
+#define net_xmit_errno(e) ((e) != NET_XMIT_CN ? -ENOBUFS : 0)
+
+#endif
+
+#define MAX_ADDR_LEN 32 /* Largest hardware address length */
+
+/* Driver transmit return codes */
+#define NETDEV_TX_OK 0 /* driver took care of packet */
+#define NETDEV_TX_BUSY 1 /* driver tx path was busy*/
+#define NETDEV_TX_LOCKED -1 /* driver tx lock was already taken */
+
+/*
+ * Compute the worst case header length according to the protocols
+ * used.
+ */
+
+#if !defined(CONFIG_AX25) && !defined(CONFIG_AX25_MODULE) && !defined(CONFIG_TR)
+#define LL_MAX_HEADER 32
+#else
+#if defined(CONFIG_AX25) || defined(CONFIG_AX25_MODULE)
+#define LL_MAX_HEADER 96
+#else
+#define LL_MAX_HEADER 48
+#endif
+#endif
+
+#if !defined(CONFIG_NET_IPIP) && \
+ !defined(CONFIG_IPV6) && !defined(CONFIG_IPV6_MODULE)
+#define MAX_HEADER LL_MAX_HEADER
+#else
+#define MAX_HEADER (LL_MAX_HEADER + 48)
+#endif
+
+/*
+ * Network device statistics. Akin to the 2.0 ether stats but
+ * with byte counters.
+ */
+
+struct net_device_stats
+{
+ unsigned long rx_packets; /* total packets received */
+ unsigned long tx_packets; /* total packets transmitted */
+ unsigned long rx_bytes; /* total bytes received */
+ unsigned long tx_bytes; /* total bytes transmitted */
+ unsigned long rx_errors; /* bad packets received */
+ unsigned long tx_errors; /* packet transmit problems */
+ unsigned long rx_dropped; /* no space in linux buffers */
+ unsigned long tx_dropped; /* no space available in linux */
+ unsigned long multicast; /* multicast packets received */
+ unsigned long collisions;
+
+ /* detailed rx_errors: */
+ unsigned long rx_length_errors;
+ unsigned long rx_over_errors; /* receiver ring buff overflow */
+ unsigned long rx_crc_errors; /* recved pkt with crc error */
+ unsigned long rx_frame_errors; /* recv'd frame alignment error */
+ unsigned long rx_fifo_errors; /* recv'r fifo overrun */
+ unsigned long rx_missed_errors; /* receiver missed packet */
+
+ /* detailed tx_errors */
+ unsigned long tx_aborted_errors;
+ unsigned long tx_carrier_errors;
+ unsigned long tx_fifo_errors;
+ unsigned long tx_heartbeat_errors;
+ unsigned long tx_window_errors;
+
+ /* for cslip etc */
+ unsigned long rx_compressed;
+ unsigned long tx_compressed;
+};
+
+
+/* Media selection options. */
+enum {
+ IF_PORT_UNKNOWN = 0,
+ IF_PORT_10BASE2,
+ IF_PORT_10BASET,
+ IF_PORT_AUI,
+ IF_PORT_100BASET,
+ IF_PORT_100BASETX,
+ IF_PORT_100BASEFX
+};
+
+#ifdef __KERNEL__
+
+#include <linux/cache.h>
+#include <linux/skbuff.h>
+
+struct neighbour;
+struct neigh_parms;
+struct sk_buff;
+
+struct netif_rx_stats
+{
+ unsigned total;
+ unsigned dropped;
+ unsigned time_squeeze;
+ unsigned throttled;
+ unsigned fastroute_hit;
+ unsigned fastroute_success;
+ unsigned fastroute_defer;
+ unsigned fastroute_deferred_out;
+ unsigned fastroute_latency_reduction;
+ unsigned cpu_collision;
+};
+
+DECLARE_PER_CPU(struct netif_rx_stats, netdev_rx_stat);
+
+
+/*
+ * We tag multicasts with these structures.
+ */
+
+struct dev_mc_list
+{
+ struct dev_mc_list *next;
+ __u8 dmi_addr[MAX_ADDR_LEN];
+ unsigned char dmi_addrlen;
+ int dmi_users;
+ int dmi_gusers;
+};
+
+struct hh_cache
+{
+ struct hh_cache *hh_next; /* Next entry */
+ atomic_t hh_refcnt; /* number of users */
+ unsigned short hh_type; /* protocol identifier, f.e ETH_P_IP
+ * NOTE: For VLANs, this will be the
+ * encapuslated type. --BLG
+ */
+ int hh_len; /* length of header */
+ int (*hh_output)(struct sk_buff *skb);
+ rwlock_t hh_lock;
+
+ /* cached hardware header; allow for machine alignment needs. */
+#define HH_DATA_MOD 16
+#define HH_DATA_OFF(__len) \
+ (HH_DATA_MOD - ((__len) & (HH_DATA_MOD - 1)))
+#define HH_DATA_ALIGN(__len) \
+ (((__len)+(HH_DATA_MOD-1))&~(HH_DATA_MOD - 1))
+ unsigned long hh_data[HH_DATA_ALIGN(LL_MAX_HEADER) / sizeof(long)];
+};
+
+/* Reserve HH_DATA_MOD byte aligned hard_header_len, but at least that much.
+ * Alternative is:
+ * dev->hard_header_len ? (dev->hard_header_len +
+ * (HH_DATA_MOD - 1)) & ~(HH_DATA_MOD - 1) : 0
+ *
+ * We could use other alignment values, but we must maintain the
+ * relationship HH alignment <= LL alignment.
+ */
+#define LL_RESERVED_SPACE(dev) \
+ (((dev)->hard_header_len&~(HH_DATA_MOD - 1)) + HH_DATA_MOD)
+#define LL_RESERVED_SPACE_EXTRA(dev,extra) \
+ ((((dev)->hard_header_len+extra)&~(HH_DATA_MOD - 1)) + HH_DATA_MOD)
+
+/* These flag bits are private to the generic network queueing
+ * layer, they may not be explicitly referenced by any other
+ * code.
+ */
+
+enum netdev_state_t
+{
+ __LINK_STATE_XOFF=0,
+ __LINK_STATE_START,
+ __LINK_STATE_PRESENT,
+ __LINK_STATE_SCHED,
+ __LINK_STATE_NOCARRIER,
+ __LINK_STATE_RX_SCHED,
+ __LINK_STATE_LINKWATCH_PENDING
+};
+
+
+/*
+ * This structure holds at boot time configured netdevice settings. They
+ * are then used in the device probing.
+ */
+struct netdev_boot_setup {
+ char name[IFNAMSIZ];
+ struct ifmap map;
+};
+#define NETDEV_BOOT_SETUP_MAX 8
+
+
+/*
+ * The DEVICE structure.
+ * Actually, this whole structure is a big mistake. It mixes I/O
+ * data with strictly "high-level" data, and it has to know about
+ * almost every data structure used in the INET module.
+ *
+ * FIXME: cleanup struct net_device such that network protocol info
+ * moves out.
+ */
+
+struct net_device
+{
+
+ /*
+ * This is the first field of the "visible" part of this structure
+ * (i.e. as seen by users in the "Space.c" file). It is the name
+ * the interface.
+ */
+ char name[IFNAMSIZ];
+
+ /*
+ * I/O specific fields
+ * FIXME: Merge these and struct ifmap into one
+ */
+ unsigned long mem_end; /* shared mem end */
+ unsigned long mem_start; /* shared mem start */
+ unsigned long base_addr; /* device I/O address */
+ unsigned int irq; /* device IRQ number */
+
+ /*
+ * Some hardware also needs these fields, but they are not
+ * part of the usual set specified in Space.c.
+ */
+
+ unsigned char if_port; /* Selectable AUI, TP,..*/
+ unsigned char dma; /* DMA channel */
+
+ unsigned long state;
+
+ struct net_device *next;
+
+ /* The device initialization function. Called only once. */
+ int (*init)(struct net_device *dev);
+
+ /* ------- Fields preinitialized in Space.c finish here ------- */
+
+ struct net_device *next_sched;
+
+ /* Interface index. Unique device identifier */
+ int ifindex;
+ int iflink;
+
+
+ struct net_device_stats* (*get_stats)(struct net_device *dev);
+ struct iw_statistics* (*get_wireless_stats)(struct net_device *dev);
+
+ /* List of functions to handle Wireless Extensions (instead of ioctl).
+ * See <net/iw_handler.h> for details. Jean II */
+ const struct iw_handler_def * wireless_handlers;
+ /* Instance data managed by the core of Wireless Extensions. */
+ struct iw_public_data * wireless_data;
+
+ struct ethtool_ops *ethtool_ops;
+
+ /*
+ * This marks the end of the "visible" part of the structure. All
+ * fields hereafter are internal to the system, and may change at
+ * will (read: may be cleaned up at will).
+ */
+
+ /* These may be needed for future network-power-down code. */
+ unsigned long trans_start; /* Time (in jiffies) of last Tx */
+ unsigned long last_rx; /* Time of last Rx */
+
+ unsigned short flags; /* interface flags (a la BSD) */
+ unsigned short gflags;
+ unsigned short priv_flags; /* Like 'flags' but invisible to userspace. */
+ unsigned short padded; /* How much padding added by alloc_netdev() */
+
+ unsigned mtu; /* interface MTU value */
+ unsigned short type; /* interface hardware type */
+ unsigned short hard_header_len; /* hardware hdr length */
+ void *priv; /* pointer to private data */
+
+ struct net_device *master; /* Pointer to master device of a group,
+ * which this device is member of.
+ */
+
+ /* Interface address info. */
+ unsigned char broadcast[MAX_ADDR_LEN]; /* hw bcast add */
+ unsigned char dev_addr[MAX_ADDR_LEN]; /* hw address */
+ unsigned char addr_len; /* hardware address length */
+ unsigned short dev_id; /* for shared network cards */
+
+ struct dev_mc_list *mc_list; /* Multicast mac addresses */
+ int mc_count; /* Number of installed mcasts */
+ int promiscuity;
+ int allmulti;
+
+ int watchdog_timeo;
+ struct timer_list watchdog_timer;
+
+ /* Protocol specific pointers */
+
+ void *atalk_ptr; /* AppleTalk link */
+ void *ip_ptr; /* IPv4 specific data */
+ void *dn_ptr; /* DECnet specific data */
+ void *ip6_ptr; /* IPv6 specific data */
+ void *ec_ptr; /* Econet specific data */
+ void *ax25_ptr; /* AX.25 specific data */
+
+ struct list_head poll_list; /* Link to poll list */
+ int quota;
+ int weight;
+
+ struct Qdisc *qdisc;
+ struct Qdisc *qdisc_sleeping;
+ struct Qdisc *qdisc_ingress;
+ struct list_head qdisc_list;
+ unsigned long tx_queue_len; /* Max frames per queue allowed */
+
+ /* ingress path synchronizer */
+ spinlock_t ingress_lock;
+ /* hard_start_xmit synchronizer */
+ spinlock_t xmit_lock;
+ /* cpu id of processor entered to hard_start_xmit or -1,
+ if nobody entered there.
+ */
+ int xmit_lock_owner;
+ /* device queue lock */
+ spinlock_t queue_lock;
+ /* Number of references to this device */
+ atomic_t refcnt;
+ /* delayed register/unregister */
+ struct list_head todo_list;
+ /* device name hash chain */
+ struct hlist_node name_hlist;
+ /* device index hash chain */
+ struct hlist_node index_hlist;
+
+ /* register/unregister state machine */
+ enum { NETREG_UNINITIALIZED=0,
+ NETREG_REGISTERING, /* called register_netdevice */
+ NETREG_REGISTERED, /* completed register todo */
+ NETREG_UNREGISTERING, /* called unregister_netdevice */
+ NETREG_UNREGISTERED, /* completed unregister todo */
+ NETREG_RELEASED, /* called free_netdev */
+ } reg_state;
+
+ /* Net device features */
+ int features;
+#define NETIF_F_SG 1 /* Scatter/gather IO. */
+#define NETIF_F_IP_CSUM 2 /* Can checksum only TCP/UDP over IPv4. */
+#define NETIF_F_NO_CSUM 4 /* Does not require checksum. F.e. loopack. */
+#define NETIF_F_HW_CSUM 8 /* Can checksum all the packets. */
+#define NETIF_F_HIGHDMA 32 /* Can DMA to high memory. */
+#define NETIF_F_FRAGLIST 64 /* Scatter/gather IO. */
+#define NETIF_F_HW_VLAN_TX 128 /* Transmit VLAN hw acceleration */
+#define NETIF_F_HW_VLAN_RX 256 /* Receive VLAN hw acceleration */
+#define NETIF_F_HW_VLAN_FILTER 512 /* Receive filtering on VLAN */
+#define NETIF_F_VLAN_CHALLENGED 1024 /* Device cannot handle VLAN packets */
+#define NETIF_F_TSO 2048 /* Can offload TCP/IP segmentation */
+#define NETIF_F_LLTX 4096 /* LockLess TX */
+
+ /* Called after device is detached from network. */
+ void (*uninit)(struct net_device *dev);
+ /* Called after last user reference disappears. */
+ void (*destructor)(struct net_device *dev);
+
+ /* Pointers to interface service routines. */
+ int (*open)(struct net_device *dev);
+ int (*stop)(struct net_device *dev);
+ int (*hard_start_xmit) (struct sk_buff *skb,
+ struct net_device *dev);
+#define HAVE_NETDEV_POLL
+ int (*poll) (struct net_device *dev, int *quota);
+ int (*hard_header) (struct sk_buff *skb,
+ struct net_device *dev,
+ unsigned short type,
+ void *daddr,
+ void *saddr,
+ unsigned len);
+ int (*rebuild_header)(struct sk_buff *skb);
+#define HAVE_MULTICAST
+ void (*set_multicast_list)(struct net_device *dev);
+#define HAVE_SET_MAC_ADDR
+ int (*set_mac_address)(struct net_device *dev,
+ void *addr);
+#define HAVE_PRIVATE_IOCTL
+ int (*do_ioctl)(struct net_device *dev,
+ struct ifreq *ifr, int cmd);
+#define HAVE_SET_CONFIG
+ int (*set_config)(struct net_device *dev,
+ struct ifmap *map);
+#define HAVE_HEADER_CACHE
+ int (*hard_header_cache)(struct neighbour *neigh,
+ struct hh_cache *hh);
+ void (*header_cache_update)(struct hh_cache *hh,
+ struct net_device *dev,
+ unsigned char * haddr);
+#define HAVE_CHANGE_MTU
+ int (*change_mtu)(struct net_device *dev, int new_mtu);
+
+#define HAVE_TX_TIMEOUT
+ void (*tx_timeout) (struct net_device *dev);
+
+ void (*vlan_rx_register)(struct net_device *dev,
+ struct vlan_group *grp);
+ void (*vlan_rx_add_vid)(struct net_device *dev,
+ unsigned short vid);
+ void (*vlan_rx_kill_vid)(struct net_device *dev,
+ unsigned short vid);
+
+ int (*hard_header_parse)(struct sk_buff *skb,
+ unsigned char *haddr);
+ int (*neigh_setup)(struct net_device *dev, struct neigh_parms *);
+#ifdef CONFIG_NETPOLL
+ struct netpoll *np;
+#endif
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ void (*poll_controller)(struct net_device *dev);
+#endif
+
+ /* bridge stuff */
+ struct net_bridge_port *br_port;
+
+#ifdef CONFIG_NET_DIVERT
+ /* this will get initialized at each interface type init routine */
+ struct divert_blk *divert;
+#endif /* CONFIG_NET_DIVERT */
+
+ /* class/net/name entry */
+ struct class_device class_dev;
+};
+
+#define NETDEV_ALIGN 32
+#define NETDEV_ALIGN_CONST (NETDEV_ALIGN - 1)
+
+static inline void *netdev_priv(struct net_device *dev)
+{
+ return (char *)dev + ((sizeof(struct net_device)
+ + NETDEV_ALIGN_CONST)
+ & ~NETDEV_ALIGN_CONST);
+}
+
+#define SET_MODULE_OWNER(dev) do { } while (0)
+/* Set the sysfs physical device reference for the network logical device
+ * if set prior to registration will cause a symlink during initialization.
+ */
+#define SET_NETDEV_DEV(net, pdev) ((net)->class_dev.dev = (pdev))
+
+struct packet_type {
+ unsigned short type; /* This is really htons(ether_type). */
+ struct net_device *dev; /* NULL is wildcarded here */
+ int (*func) (struct sk_buff *, struct net_device *,
+ struct packet_type *);
+ void *af_packet_priv;
+ struct list_head list;
+};
+
+#include <linux/interrupt.h>
+#include <linux/notifier.h>
+
+extern struct net_device loopback_dev; /* The loopback */
+extern struct net_device *dev_base; /* All devices */
+extern rwlock_t dev_base_lock; /* Device list lock */
+
+extern int netdev_boot_setup_check(struct net_device *dev);
+extern unsigned long netdev_boot_base(const char *prefix, int unit);
+extern struct net_device *dev_getbyhwaddr(unsigned short type, char *hwaddr);
+extern struct net_device *dev_getfirstbyhwtype(unsigned short type);
+extern void dev_add_pack(struct packet_type *pt);
+extern void dev_remove_pack(struct packet_type *pt);
+extern void __dev_remove_pack(struct packet_type *pt);
+
+extern struct net_device *dev_get_by_flags(unsigned short flags,
+ unsigned short mask);
+extern struct net_device *dev_get_by_name(const char *name);
+extern struct net_device *__dev_get_by_name(const char *name);
+extern int dev_alloc_name(struct net_device *dev, const char *name);
+extern int dev_open(struct net_device *dev);
+extern int dev_close(struct net_device *dev);
+extern int dev_queue_xmit(struct sk_buff *skb);
+extern int register_netdevice(struct net_device *dev);
+extern int unregister_netdevice(struct net_device *dev);
+extern void free_netdev(struct net_device *dev);
+extern void synchronize_net(void);
+extern int register_netdevice_notifier(struct notifier_block *nb);
+extern int unregister_netdevice_notifier(struct notifier_block *nb);
+extern int call_netdevice_notifiers(unsigned long val, void *v);
+extern struct net_device *dev_get_by_index(int ifindex);
+extern struct net_device *__dev_get_by_index(int ifindex);
+extern int dev_restart(struct net_device *dev);
+#ifdef CONFIG_NETPOLL_TRAP
+extern int netpoll_trap(void);
+#endif
+
+typedef int gifconf_func_t(struct net_device * dev, char __user * bufptr, int len);
+extern int register_gifconf(unsigned int family, gifconf_func_t * gifconf);
+static inline int unregister_gifconf(unsigned int family)
+{
+ return register_gifconf(family, NULL);
+}
+
+/*
+ * Incoming packets are placed on per-cpu queues so that
+ * no locking is needed.
+ */
+
+struct softnet_data
+{
+ int throttle;
+ int cng_level;
+ int avg_blog;
+ struct sk_buff_head input_pkt_queue;
+ struct list_head poll_list;
+ struct net_device *output_queue;
+ struct sk_buff *completion_queue;
+
+ struct net_device backlog_dev; /* Sorry. 8) */
+};
+
+DECLARE_PER_CPU(struct softnet_data,softnet_data);
+
+#define HAVE_NETIF_QUEUE
+
+static inline void __netif_schedule(struct net_device *dev)
+{
+ if (!test_and_set_bit(__LINK_STATE_SCHED, &dev->state)) {
+ unsigned long flags;
+ struct softnet_data *sd;
+
+ local_irq_save(flags);
+ sd = &__get_cpu_var(softnet_data);
+ dev->next_sched = sd->output_queue;
+ sd->output_queue = dev;
+ raise_softirq_irqoff(NET_TX_SOFTIRQ);
+ local_irq_restore(flags);
+ }
+}
+
+static inline void netif_schedule(struct net_device *dev)
+{
+ if (!test_bit(__LINK_STATE_XOFF, &dev->state))
+ __netif_schedule(dev);
+}
+
+static inline void netif_start_queue(struct net_device *dev)
+{
+ clear_bit(__LINK_STATE_XOFF, &dev->state);
+}
+
+static inline void netif_wake_queue(struct net_device *dev)
+{
+#ifdef CONFIG_NETPOLL_TRAP
+ if (netpoll_trap())
+ return;
+#endif
+ if (test_and_clear_bit(__LINK_STATE_XOFF, &dev->state))
+ __netif_schedule(dev);
+}
+
+static inline void netif_stop_queue(struct net_device *dev)
+{
+#ifdef CONFIG_NETPOLL_TRAP
+ if (netpoll_trap())
+ return;
+#endif
+ set_bit(__LINK_STATE_XOFF, &dev->state);
+}
+
+static inline int netif_queue_stopped(const struct net_device *dev)
+{
+ return test_bit(__LINK_STATE_XOFF, &dev->state);
+}
+
+static inline int netif_running(const struct net_device *dev)
+{
+ return test_bit(__LINK_STATE_START, &dev->state);
+}
+
+
+/* Use this variant when it is known for sure that it
+ * is executing from interrupt context.
+ */
+static inline void dev_kfree_skb_irq(struct sk_buff *skb)
+{
+ if (atomic_dec_and_test(&skb->users)) {
+ struct softnet_data *sd;
+ unsigned long flags;
+
+ local_irq_save(flags);
+ sd = &__get_cpu_var(softnet_data);
+ skb->next = sd->completion_queue;
+ sd->completion_queue = skb;
+ raise_softirq_irqoff(NET_TX_SOFTIRQ);
+ local_irq_restore(flags);
+ }
+}
+
+/* Use this variant in places where it could be invoked
+ * either from interrupt or non-interrupt context.
+ */
+static inline void dev_kfree_skb_any(struct sk_buff *skb)
+{
+ if (in_irq() || irqs_disabled())
+ dev_kfree_skb_irq(skb);
+ else
+ dev_kfree_skb(skb);
+}
+
+#define HAVE_NETIF_RX 1
+extern int netif_rx(struct sk_buff *skb);
+extern int netif_rx_ni(struct sk_buff *skb);
+#define HAVE_NETIF_RECEIVE_SKB 1
+extern int netif_receive_skb(struct sk_buff *skb);
+extern int dev_ioctl(unsigned int cmd, void __user *);
+extern int dev_ethtool(struct ifreq *);
+extern unsigned dev_get_flags(const struct net_device *);
+extern int dev_change_flags(struct net_device *, unsigned);
+extern int dev_change_name(struct net_device *, char *);
+extern int dev_set_mtu(struct net_device *, int);
+extern int dev_set_mac_address(struct net_device *,
+ struct sockaddr *);
+extern void dev_queue_xmit_nit(struct sk_buff *skb, struct net_device *dev);
+
+extern void dev_init(void);
+
+extern int netdev_nit;
+
+/* Called by rtnetlink.c:rtnl_unlock() */
+extern void netdev_run_todo(void);
+
+static inline void dev_put(struct net_device *dev)
+{
+ atomic_dec(&dev->refcnt);
+}
+
+#define __dev_put(dev) atomic_dec(&(dev)->refcnt)
+#define dev_hold(dev) atomic_inc(&(dev)->refcnt)
+
+/* Carrier loss detection, dial on demand. The functions netif_carrier_on
+ * and _off may be called from IRQ context, but it is caller
+ * who is responsible for serialization of these calls.
+ */
+
+extern void linkwatch_fire_event(struct net_device *dev);
+
+static inline int netif_carrier_ok(const struct net_device *dev)
+{
+ return !test_bit(__LINK_STATE_NOCARRIER, &dev->state);
+}
+
+extern void __netdev_watchdog_up(struct net_device *dev);
+
+static inline void netif_carrier_on(struct net_device *dev)
+{
+ if (test_and_clear_bit(__LINK_STATE_NOCARRIER, &dev->state))
+ linkwatch_fire_event(dev);
+ if (netif_running(dev))
+ __netdev_watchdog_up(dev);
+}
+
+static inline void netif_carrier_off(struct net_device *dev)
+{
+ if (!test_and_set_bit(__LINK_STATE_NOCARRIER, &dev->state))
+ linkwatch_fire_event(dev);
+}
+
+/* Hot-plugging. */
+static inline int netif_device_present(struct net_device *dev)
+{
+ return test_bit(__LINK_STATE_PRESENT, &dev->state);
+}
+
+static inline void netif_device_detach(struct net_device *dev)
+{
+ if (test_and_clear_bit(__LINK_STATE_PRESENT, &dev->state) &&
+ netif_running(dev)) {
+ netif_stop_queue(dev);
+ }
+}
+
+static inline void netif_device_attach(struct net_device *dev)
+{
+ if (!test_and_set_bit(__LINK_STATE_PRESENT, &dev->state) &&
+ netif_running(dev)) {
+ netif_wake_queue(dev);
+ __netdev_watchdog_up(dev);
+ }
+}
+
+/*
+ * Network interface message level settings
+ */
+#define HAVE_NETIF_MSG 1
+
+enum {
+ NETIF_MSG_DRV = 0x0001,
+ NETIF_MSG_PROBE = 0x0002,
+ NETIF_MSG_LINK = 0x0004,
+ NETIF_MSG_TIMER = 0x0008,
+ NETIF_MSG_IFDOWN = 0x0010,
+ NETIF_MSG_IFUP = 0x0020,
+ NETIF_MSG_RX_ERR = 0x0040,
+ NETIF_MSG_TX_ERR = 0x0080,
+ NETIF_MSG_TX_QUEUED = 0x0100,
+ NETIF_MSG_INTR = 0x0200,
+ NETIF_MSG_TX_DONE = 0x0400,
+ NETIF_MSG_RX_STATUS = 0x0800,
+ NETIF_MSG_PKTDATA = 0x1000,
+ NETIF_MSG_HW = 0x2000,
+ NETIF_MSG_WOL = 0x4000,
+};
+
+#define netif_msg_drv(p) ((p)->msg_enable & NETIF_MSG_DRV)
+#define netif_msg_probe(p) ((p)->msg_enable & NETIF_MSG_PROBE)
+#define netif_msg_link(p) ((p)->msg_enable & NETIF_MSG_LINK)
+#define netif_msg_timer(p) ((p)->msg_enable & NETIF_MSG_TIMER)
+#define netif_msg_ifdown(p) ((p)->msg_enable & NETIF_MSG_IFDOWN)
+#define netif_msg_ifup(p) ((p)->msg_enable & NETIF_MSG_IFUP)
+#define netif_msg_rx_err(p) ((p)->msg_enable & NETIF_MSG_RX_ERR)
+#define netif_msg_tx_err(p) ((p)->msg_enable & NETIF_MSG_TX_ERR)
+#define netif_msg_tx_queued(p) ((p)->msg_enable & NETIF_MSG_TX_QUEUED)
+#define netif_msg_intr(p) ((p)->msg_enable & NETIF_MSG_INTR)
+#define netif_msg_tx_done(p) ((p)->msg_enable & NETIF_MSG_TX_DONE)
+#define netif_msg_rx_status(p) ((p)->msg_enable & NETIF_MSG_RX_STATUS)
+#define netif_msg_pktdata(p) ((p)->msg_enable & NETIF_MSG_PKTDATA)
+#define netif_msg_hw(p) ((p)->msg_enable & NETIF_MSG_HW)
+#define netif_msg_wol(p) ((p)->msg_enable & NETIF_MSG_WOL)
+
+static inline u32 netif_msg_init(int debug_value, int default_msg_enable_bits)
+{
+ /* use default */
+ if (debug_value < 0 || debug_value >= (sizeof(u32) * 8))
+ return default_msg_enable_bits;
+ if (debug_value == 0) /* no output */
+ return 0;
+ /* set low N bits */
+ return (1 << debug_value) - 1;
+}
+
+/* Schedule rx intr now? */
+
+static inline int netif_rx_schedule_prep(struct net_device *dev)
+{
+ return netif_running(dev) &&
+ !test_and_set_bit(__LINK_STATE_RX_SCHED, &dev->state);
+}
+
+/* Add interface to tail of rx poll list. This assumes that _prep has
+ * already been called and returned 1.
+ */
+
+static inline void __netif_rx_schedule(struct net_device *dev)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+ dev_hold(dev);
+ list_add_tail(&dev->poll_list, &__get_cpu_var(softnet_data).poll_list);
+ if (dev->quota < 0)
+ dev->quota += dev->weight;
+ else
+ dev->quota = dev->weight;
+ __raise_softirq_irqoff(NET_RX_SOFTIRQ);
+ local_irq_restore(flags);
+}
+
+/* Try to reschedule poll. Called by irq handler. */
+
+static inline void netif_rx_schedule(struct net_device *dev)
+{
+ if (netif_rx_schedule_prep(dev))
+ __netif_rx_schedule(dev);
+}
+
+/* Try to reschedule poll. Called by dev->poll() after netif_rx_complete().
+ * Do not inline this?
+ */
+static inline int netif_rx_reschedule(struct net_device *dev, int undo)
+{
+ if (netif_rx_schedule_prep(dev)) {
+ unsigned long flags;
+
+ dev->quota += undo;
+
+ local_irq_save(flags);
+ list_add_tail(&dev->poll_list, &__get_cpu_var(softnet_data).poll_list);
+ __raise_softirq_irqoff(NET_RX_SOFTIRQ);
+ local_irq_restore(flags);
+ return 1;
+ }
+ return 0;
+}
+
+/* Remove interface from poll list: it must be in the poll list
+ * on current cpu. This primitive is called by dev->poll(), when
+ * it completes the work. The device cannot be out of poll list at this
+ * moment, it is BUG().
+ */
+static inline void netif_rx_complete(struct net_device *dev)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+ BUG_ON(!test_bit(__LINK_STATE_RX_SCHED, &dev->state));
+ list_del(&dev->poll_list);
+ smp_mb__before_clear_bit();
+ clear_bit(__LINK_STATE_RX_SCHED, &dev->state);
+ local_irq_restore(flags);
+}
+
+static inline void netif_poll_disable(struct net_device *dev)
+{
+ while (test_and_set_bit(__LINK_STATE_RX_SCHED, &dev->state)) {
+ /* No hurry. */
+ current->state = TASK_INTERRUPTIBLE;
+ schedule_timeout(1);
+ }
+}
+
+static inline void netif_poll_enable(struct net_device *dev)
+{
+ clear_bit(__LINK_STATE_RX_SCHED, &dev->state);
+}
+
+/* same as netif_rx_complete, except that local_irq_save(flags)
+ * has already been issued
+ */
+static inline void __netif_rx_complete(struct net_device *dev)
+{
+ BUG_ON(!test_bit(__LINK_STATE_RX_SCHED, &dev->state));
+ list_del(&dev->poll_list);
+ smp_mb__before_clear_bit();
+ clear_bit(__LINK_STATE_RX_SCHED, &dev->state);
+}
+
+static inline void netif_tx_disable(struct net_device *dev)
+{
+ spin_lock_bh(&dev->xmit_lock);
+ netif_stop_queue(dev);
+ spin_unlock_bh(&dev->xmit_lock);
+}
+
+/* These functions live elsewhere (drivers/net/net_init.c, but related) */
+
+extern void ether_setup(struct net_device *dev);
+
+/* Support for loadable net-drivers */
+extern struct net_device *alloc_netdev(int sizeof_priv, const char *name,
+ void (*setup)(struct net_device *));
+extern int register_netdev(struct net_device *dev);
+extern void unregister_netdev(struct net_device *dev);
+/* Functions used for multicast support */
+extern void dev_mc_upload(struct net_device *dev);
+extern int dev_mc_delete(struct net_device *dev, void *addr, int alen, int all);
+extern int dev_mc_add(struct net_device *dev, void *addr, int alen, int newonly);
+extern void dev_mc_discard(struct net_device *dev);
+extern void dev_set_promiscuity(struct net_device *dev, int inc);
+extern void dev_set_allmulti(struct net_device *dev, int inc);
+extern void netdev_state_change(struct net_device *dev);
+/* Load a device via the kmod */
+extern void dev_load(const char *name);
+extern void dev_mcast_init(void);
+extern int netdev_max_backlog;
+extern int weight_p;
+extern int netdev_set_master(struct net_device *dev, struct net_device *master);
+extern int skb_checksum_help(struct sk_buff *skb, int inward);
+/* rx skb timestamps */
+extern void net_enable_timestamp(void);
+extern void net_disable_timestamp(void);
+
+#ifdef CONFIG_SYSCTL
+extern char *net_sysctl_strdup(const char *s);
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* _LINUX_DEV_H */